package com.laf.framework.web.service;


import com.laf.common.constant.CacheConstants;
import com.laf.common.constant.Constants;
import com.laf.common.constant.UserConstants;
import com.laf.common.core.domain.model.LoginMobileUser;
import com.laf.common.core.redis.RedisCache;
import com.laf.common.exception.ServiceException;
import com.laf.common.exception.user.*;
import com.laf.common.utils.MessageUtils;
import com.laf.common.utils.StringUtils;
import com.laf.common.utils.ip.IpUtils;
import com.laf.framework.manager.AsyncManager;
import com.laf.framework.manager.factory.AsyncFactory;
import com.laf.system.service.ISysConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

@Component
public class MobileUserLoginService {

    @Autowired
    private TokenService tokenService;

    @Autowired
    @Qualifier("mobileUserAuthenticationManager")
    private AuthenticationManager mobileUserAuthenticationManager;


    @Autowired
    private ISysConfigService configService;

    @Autowired
    private RedisCache redisCache;


    /**
     * 移动端用户登录验证
     *
     * @param username 账号
     * @param password 密码
     * @param code     验证码
     * @param uuid     uuid
     * @return
     */
    public String login(String username, String password, String code, String uuid) {
        // 验证码校验
        validateCaptcha(username, code, uuid);
        // 登录前置校验
        loginPreCheck(username, password);
        Authentication authenticate;
        try {
            // 去到  mobileUserDetailsServiceImpl 调用 loadUserByUsername 方法 TODO 登录错误
            authenticate = mobileUserAuthenticationManager.authenticate(new UsernamePasswordAuthenticationToken(username, password));
        } catch (Exception e) {
            if (e instanceof BadCredentialsException) {
                throw new UserPasswordNotMatchException();
            } else {
                throw new ServiceException("登录失败：" + e.getMessage());
            }
        }
        LoginMobileUser curUser = (LoginMobileUser) authenticate.getPrincipal();
        return tokenService.createTokenMobile(curUser);
    }


    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid) {
        boolean captchaEnabled = configService.selectCaptchaEnabled();
        if (captchaEnabled) {
            String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
            String captcha = redisCache.getCacheObject(verifyKey);
            if (captcha == null) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
                throw new CaptchaExpireException();
            }
            redisCache.deleteObject(verifyKey);
            if (!code.equalsIgnoreCase(captcha)) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
                throw new CaptchaException();
            }
        }
    }

    /**
     * 登录前置校验
     *
     * @param username 用户名
     * @param password 用户密码
     */
    public void loginPreCheck(String username, String password) {
        // 用户名或密码为空 错误
        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
            throw new UserNotExistsException();
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // IP黑名单校验
        String blackStr = configService.selectConfigByKey("sys.login.blackIPList");
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr())) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("login.blocked")));
            throw new BlackListException();
        }
    }


    /**
     * 退出登录
     *
     * @param request token
     */
    public void quit(HttpServletRequest request) {
        // 获取token
        LoginMobileUser loginMobileUser = tokenService.getLoginMobileUser(request);
        // 删除 redis 中token 中的用户缓存
        tokenService.delLoginMobileUser(loginMobileUser.getToken());
    }
}
